Natural Spinel 6.06 ct – Cushion Cut, Untreated, Reddish Pink, Tanzania

Natural spinel, 6.06 carats, cushion cut, VVS+ clarity, untreated, reddish-pink color, origin Tanzania

Natural Spinel 6.06 ct – Cushion Cut, Untreated, Reddish Pink, Tanzania

Name: Natural Spinel 6.06 ct – Cushion Cut, Untreated, Reddish Pink, Tanzania
Brand: SOSNA Gems & Jewellery
SKU: 2703006
Price: 1012267.00 CZK
Availability: InStock

1.012.267,00 CZK

Gemstone Specification

Carat Weight 6.06

Dimensions 11.90 x 9.40 x 6.00 mm

Color Reddish Pink

Clarity Eye Clean

Shape Cushion

Treatment No Treatment

Origin Tanzania

Certification IGI or GIA

This natural spinel weighs 6.06 carats and is cut in a sophisticated cushion shape, measuring 11.9 × 9.4 × 6.0 mm. It exhibits a striking reddish-pink hue, enriched by excellent luster and brilliance. With VVS+ clarity, the gemstone offers outstanding transparency, a rare feature in spinels of this size. Certified as no treatment / unheated, it retains its natural authenticity without enhancement.

Originating from Tanzania, a respected source of fine spinels, this gemstone combines significant size, vivid color, exceptional clarity, and untreated origin. Such attributes make it highly desirable for collectors and an excellent investment-grade option for bespoke high jewelry designs.

Natural Spinel 6.06 ct – Cushion Cut, Untreated, Reddish Pink, Tanzania

1.012.267,00 CZK

From gemstone to jewelry

This gemstone can be transformed into a custom-made jewel.
The example shown illustrates how a loose stone may be set into a bespoke design.
Each final piece is created individually in consultation with our experts.

Loose gemstone

Bespoke jewelry

Custom jewelry service

Selected gemstones from our collection can be transformed into bespoke jewelry.
The example above illustrates one of many possible design outcomes, each created individually in consultation with our experts to reflect both your preferences and the stone’s natural character.

Learn more about custom jewelry

Insured Express Delivery

Fully insured worldwide shipping with discreet packaging.

Gemological Disclosure

Each gemstone is professionally examined and accompanied by clear gemological information regarding its characteristics, treatments, and origin.

Ethical & Transparent Sourcing

We guarantee legal and ethical origin of every gemstone.

Secure & Trusted Purchase

Protected payments, professional handling, and client confidentiality.

Gemological overview

Technical and gemological information about this gemstone variety.

Gemological profile

Spinel is a natural magnesium aluminum oxide mineral valued for its excellent transparency, vibrant color range, and clean crystal structure. In gem-quality material, spinel is appreciated for its clarity and lively appearance, with colors ranging from red, pink, and purple to blue, gray, and black, depending on trace elements present during formation.
Chemically composed of magnesium aluminum oxide (MgAl₂O₄), spinel crystallizes in the cubic crystal system and belongs to the oxide mineral group. In transparent gem-quality specimens, it typically displays a vitreous luster with high clarity.
The refractive index of spinel generally ranges from approximately 1.718 to 1.738, producing a bright, balanced brilliance without excessive dispersion. Spinel is found in several regions worldwide, with notable sources including Myanmar, Sri Lanka, Vietnam, Tanzania, and parts of Afghanistan, each associated with slightly different color characteristics.

Durability & suitability

With a hardness of 8 on the Mohs scale, spinel offers very good durability suitable for everyday jewelry when properly set and worn with standard care. Its lack of cleavage contributes to excellent resistance against impact and abrasion compared to many other colored gemstones.
Spinel performs reliably in rings, pendants, earrings, and bracelets, including designs intended for frequent wear. Its combination of durability, stable color, and refined brilliance makes spinel a practical and versatile choice for both everyday jewelry and elegant, statement-oriented designs.

Treatments & authenticity

Spinel is most commonly found in nature without the need for enhancement. Treatments are generally uncommon, and gem-quality spinel is typically valued for its natural color and clarity.
Any treatments or enhancements, if present, are always clearly stated for each individual gemstone. Every stone is professionally examined, and transparent disclosure is regarded as a fundamental part of responsible gemological practice, allowing clients to make informed and confident decisions.

Our approach to gemstones

We focus primarily on natural, untreated gemstones, valued for their authenticity and inherent beauty.
Any treatments or enhancements are always clearly disclosed, allowing our clients to make informed decisions based on transparent gemological standards.

Sosna Gems is not a licensed financial advisor. Gemstones are collectibles, not securities. Past performance is not indicative of future results. Legal & risk disclosure .